From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 87DE718EB0 for ; Wed, 28 May 2025 02:16:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748398577; cv=none; b=QIaRvJfBb9NIxWA+f6zDYlswqbLAfl7XM5t3JeSOrfzBjnkDGVbR0CfZMTxQZR/gNB+IrcwT6X8+oLzWu7sE2EZjIuFwxYXT2l/UZRc6hwDqmrM2gDadH0beCuWxtr/UDOyfvqVhwyPXR0yLyHRiuGpM+UdUieqQhApgRRCYl8g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748398577; c=relaxed/simple; bh=BALfMBic2w3dWyLxkpvTFdKEzpTc82+wXIbasgQEg5k=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=LCROfrCKpn86p9NoGmqpa3xTtyW7HgHNnIZJujZG0y4VZTAWEYXokX+43bz5cFuaZx5ASk5koLUjWJWIW/pLMb1DrH84ibq+ayrlQZSa9Vw0dolI1LFf7mBJDmJyp3DvuXI1NrqhAD1QkgqFabXTZlAXbK9vjIxNbwbpr0lpgeI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BA3TIGTW; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BA3TIGTW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B64E1C4CEE9; Wed, 28 May 2025 02:16:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748398577; bh=BALfMBic2w3dWyLxkpvTFdKEzpTc82+wXIbasgQEg5k=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=BA3TIGTW56LnA61E7bpwVLKAw5zeCT1D7FlldW0JgJz+9Hl81jOWOs2NKhDBL8tvC TmAbt1DlPzcMCkeUusm0eFnvnhhL+hD1Fms1VRJHi8g/sTkPerSZALcplFESXR5xJD jXxu/G/WcCtkntHfr6iT26IxPtE5RSwVulxIwrZWzw7xEtqG8pw4h13FxRfkC1Fy8A d5oTIs9Z72WJd4S/PbreMmcALb1NivlVqybxeZYriot4KuKdRicpCbjXfmEeBKvLHF pTV9Ltu5VHCmpeIFhtDHJCeRpKFnCRWpv0K6MJ+kFkdbL95uBCAE41CXhe29YKokfZ zxQn/8RRXpioQ== Date: Tue, 27 May 2025 19:16:15 -0700 From: Jakub Kicinski To: John Ousterhout Cc: netdev@vger.kernel.org, pabeni@redhat.com, edumazet@google.com, horms@kernel.org Subject: Re: [PATCH net-next v9 00/15] Begin upstreaming Homa transport protocol Message-ID: <20250527191615.57502235@kernel.org> In-Reply-To: <20250526042819.2526-1-ouster@cs.stanford.edu> References: <20250526042819.2526-1-ouster@cs.stanford.edu> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Sun, 25 May 2025 21:28:02 -0700 John Ousterhout wrote: > This patch series begins the process of upstreaming the Homa transport > protocol. Homa is an alternative to TCP for use in datacenter > environments. It provides 10-100x reductions in tail latency for short > messages relative to TCP. Its benefits are greatest for mixed workloads > containing both short and long messages running under high network loads. > Homa is not API-compatible with TCP: it is connectionless and message- > oriented (but still reliable and flow-controlled). Homa's new API not > only contributes to its performance gains, but it also eliminates the > massive amount of connection state required by TCP for highly connected > datacenter workloads (Homa uses ~ 1 socket per application, whereas > TCP requires a separate socket for each peer). ## Form letter - net-next-closed The merge window for v6.16 has begun and therefore net-next is closed for new drivers, features, code refactoring and optimizations. Please repost when net-next reopens after June 9th. RFC patches sent for review only are obviously welcome at any time. See: https://www.kernel.org/doc/html/next/process/maintainer-netdev.html#development-cycle -- pw-bot: defer